For a reader who just finished
Books like The Gentleman's Guide to Vice and Virtue
after The Gentleman's Guide to Vice and Virtue by Mackenzi Lee · ages 14–18
Same style

by Patrick Rothfuss
Young adult · ages 14–18 · grades 9–12 · 1050L
A genuine doorstop fantasy that respects teen readers' intelligence — ornate prose, deep worldbuilding, and a narrator whose unreliability becomes part of the pleasure.

by J.R.R. Tolkien
Young adult · ages 12–18 · grades 7–12 · 1050L
The foundational fantasy epic — dense prose and a sprawling cast will test a 12-year-old's stamina, but kids who can stick with it experience the architecture of an entire imagined world and the rare pleasure of a book that respects their intelligence.

by Terry Pratchett
Young adult · ages 10–14 · grades 5–9 · 920L
Pratchett's most emotionally grounded Discworld novel—Tiffany's choice to refuse supernatural temptation in favor of her own calling lands harder than any romance, and the prose does real work making fairyland both beautiful and genuinely unsettling.
Stretch them up

by Mary Shelley
Young adult · ages 12–18 · grades 7–12 · 1180L
A genuinely haunting exploration of responsibility, isolation, and monstrosity that holds up—the creature is more eloquent and sympathetic than Victor, and that inversion lands harder on a reread.

by Mary Shelley
Young adult · ages 13–18 · grades 8–12 · 1220L
Dense 19th-century prose and frame-story structure demand patient readers, but the creature's own voice is one of literature's great moral achievements—genuinely unsettling not for gore but for questions about creation, worth, and cruelty.

by Homer
Young adult · ages 12–18 · grades 7–12 · 1200L
A foundational epic with real bite—the supernatural menace and maritime peril land, the politics of honor and homecoming still sting, and most 12+ readers surprise themselves by wanting to know what happens next.
Complementing on courage

by Russell Freedman
Nonfiction · ages 9–12 · grades 4–7 · 820L
Freedman's accessible, photo-rich biography makes FDR's disability and determination feel immediate without sentimentality; kids grasp both the man and the era.

by Lloyd Alexander
Middle grade · ages 10–14 · grades 5–9 · 780L
The high-water mark of mid-century fantasy for this age—serious stakes, earned character growth, and a finale that actually trusts kids to grieve and think.

by Rick Riordan
Middle grade · ages 9–12 · grades 4–7 · 740L
The gold standard entry point for myths, quests, and kids who love witty protagonists — the ADHD/dyslexia angle feels earned, not decorative, and Riordan's voice carries slow readers through.